Refactoring

[ghc-hetmet.git] / compiler / vectorise / Vectorise.hs

diff --git a/compiler/vectorise/Vectorise.hs b/compiler/vectorise/Vectorise.hs
index 0d9a8e1..c73564c 100644 (file)
--- a/compiler/vectorise/Vectorise.hs
+++ b/compiler/vectorise/Vectorise.hs
@@ -40,7 +40,7 @@ import BasicTypes           ( Boxity(..) )
 
 import Outputable
 import FastString
-import Control.Monad        ( liftM, liftM2, mapAndUnzipM, zipWithM_ )
+import Control.Monad        ( liftM, liftM2, mapAndUnzipM )
 
 vectorise :: HscEnv -> UniqSupply -> RuleBase -> ModGuts
           -> IO (SimplCount, ModGuts)
@@ -58,15 +58,17 @@ vectorise hsc_env _ _ guts
 vectModule :: ModGuts -> VM ModGuts
 vectModule guts
   = do
-      (types', fam_insts, insts) <- vectTypeEnv (mg_types guts)
-
-      let fam_inst_env' = extendFamInstEnvList (mg_fam_inst_env guts) fam_insts
+      (types', fam_insts, pa_insts) <- vectTypeEnv (mg_types guts)
+      
+      let insts         = map painstInstance pa_insts
+          fam_inst_env' = extendFamInstEnvList (mg_fam_inst_env guts) fam_insts
           inst_env'     = extendInstEnvList (mg_inst_env guts) insts
       updGEnv (setInstEnvs inst_env' fam_inst_env')
-      
+     
+      dicts  <- mapM buildPADict pa_insts 
       binds' <- mapM vectTopBind (mg_binds guts)
       return $ guts { mg_types        = types'
-                    , mg_binds        = binds'
+                    , mg_binds        = Rec (concat dicts) : binds'
                     , mg_inst_env     = inst_env'
                     , mg_fam_inst_env = fam_inst_env'
                     , mg_insts        = mg_insts guts ++ insts
@@ -173,33 +175,11 @@ vectPolyVar lc v tys
                                   lexpr <- replicatePA vexpr lc
                                   return (vexpr, lexpr)
   where
-    mk_app e = applyToTypes e =<< mapM vectType tys
-
-abstractOverTyVars :: [TyVar] -> ((CoreExpr -> CoreExpr) -> VM a) -> VM a
-abstractOverTyVars tvs p
-  = do
-      mdicts <- mapM mk_dict_var tvs
-      zipWithM_ (\tv -> maybe (defLocalTyVar tv) (defLocalTyVarWithPA tv . Var)) tvs mdicts
-      p (mk_lams mdicts)
-  where
-    mk_dict_var tv = do
-                       r <- paDictArgType tv
-                       case r of
-                         Just ty -> liftM Just (newLocalVar FSLIT("dPA") ty)
-                         Nothing -> return Nothing
-
-    mk_lams mdicts = mkLams (tvs ++ [dict | Just dict <- mdicts])
-
-applyToTypes :: CoreExpr -> [Type] -> VM CoreExpr
-applyToTypes expr tys
-  = do
-      dicts <- mapM paDictOfType tys
-      return $ expr `mkTyApps` tys `mkApps` dicts
+    mk_app e = polyApply e =<< mapM vectType tys
 
 vectPolyExpr :: CoreExpr -> CoreExprWithFVs -> VM (CoreExpr, CoreExpr)
 vectPolyExpr lc expr
-  = localV
-  . abstractOverTyVars tvs $ \mk_lams ->
+  = polyAbstract tvs $ \mk_lams ->
     -- FIXME: shadowing (tvs in lc)
     do
       (vmono, lmono) <- vectExpr lc mono
@@ -283,8 +263,8 @@ vectExpr lc (fvs, AnnLam bndr body)
       res_ty <- vectType (exprType $ deAnnotate body)
 
       -- FIXME: move the functions to the top level
-      mono_vfn <- applyToTypes (Var vfn_var) (mkTyVarTys tyvars)
-      mono_lfn <- applyToTypes (Var lfn_var) (mkTyVarTys tyvars)
+      mono_vfn <- polyApply (Var vfn_var) (mkTyVarTys tyvars)
+      mono_lfn <- polyApply (Var lfn_var) (mkTyVarTys tyvars)
 
       mk_clo <- builtin mkClosureVar
       mk_cloP <- builtin mkClosurePVar
@@ -367,7 +347,7 @@ mkClosureFns :: CEnvInfo -> [TyVar] -> Var -> CoreExprWithFVs
              -> VM (CoreExpr, CoreExpr)
 mkClosureFns info tyvars arg body
   = closedV
-  . abstractOverTyVars tyvars
+  . polyAbstract tyvars
   $ \mk_tlams ->
   do
     (vfn, lfn) <- mkClosureMonoFns info arg body